Results 61 to 70 of about 593,954 (295)

Prediction of resistance and propulsion performances using calm-water and resistance tests in regular head waves of a 1,800 TEU container ship

International Journal of Naval Architecture and Ocean Engineering, 2022
This paper predicts resistance and propulsion performances in regular and irregular head waves of a 1800 TEU container ship. ‘Calm-water tests’ and ‘resistance test in regular waves’ have been performed. Methods applied are the LVM-W and the revised ITTC-
Jin-Won Yu, Seong-geun Kim, Wooyoung Jeong, Yang Ik Kim, Jung-Eun Choi, Inwon Lee   +5 more
doaj   +1 more source

Attraction of Spiral Waves by Localized Inhomogeneities with Small-World Connections in Excitable Media

, 2003
Trapping and un-trapping of spiral tips in a two-dimensional homogeneous excitable medium with local small-world connections is studied by numerical simulation.
Jiang, Minxi, Lu, Ying, Ouyang, Qi, Wang, Xiaonan   +3 more
core   +1 more source

Innovating Aircraft Repair Processes: The Role of Digitalization in Sustainability

Advanced Engineering Materials, EarlyView.
This research explores how digitalization—by storing detailed non‐destructive testing data in structured DICONDE databases and creating a standard data model of the component—innovates aviation maintenance and repair processes. Coupled with a developed state‐based simulation model, it enables data‐driven, sustainable repair strategies that reduce waste,
Johanna Aigner, Geo Jacob, Florian Raddatz, Gerko Wende   +3 more
wiley   +1 more source

Pointwise Behavior of the Linearized Boltzmann Equation on Torus [PDF]

, 2013
We study the pointwise behavior of the linearized Boltzmann equation on torus for non-smooth initial perturbation. The result reveals both the fluid and kinetic aspects of this model.
Wu, Kung-Chien
core  

Wave-wave regular interactions of a gasdynamic type

INCAS BULLETIN, 2011
Two gas dynamic analytic approaches [of a Burnat type / Martin type] are respectively used in order to construct two analogous and significant pairs of classes of solutions [isentropic pair / anisentropic (of a particular type) pair]. Each mentioned pair puts together a class of “wave” elements and a class of “wave-wave regular interaction” elements. A
Marina Ileana DINU, Liviu Florin DINU
openaire   +2 more sources

Duplex Stainless Steel Laser‐Surface Textured: Stability in Brine Solution

Advanced Engineering Materials, EarlyView.
Controlled laser‐surface treatment (LST) of duplex DSS2205 steel is performed to increase its stability in brine solution under cyclic electrochemical assays. The superior protection with respect to flat and smooth panels is attributed to the presence of FeCr2O4 as the main protective oxide layer in the LST surface, after corrosion tests. The stability
Mohammad Rezayat, Hamidreza Enshaei, Elaine Armelin, José I. Iribarren, Antonio Mateo, Miguel Morales   +5 more
wiley   +1 more source

Vertical Bending Moment in Extreme Regular Waves—Benchmarking of Numerical Codes Against Model Tests

Journal of Marine Science and Engineering
A benchmark study of 10 different numerical methods for ship motion and load assessment is presented. Pitch motions and midship vertical bending moments are compared to model test results for a containership at zero speed in head regular waves.
Ole Andreas Hermundstad, Guillaume de Hauteclocque, Sopheak Seng, Masayoshi Oka, Chong Ma, Benjamin Bouscasse, Roberto Vettor, Shan Wang, Ivan Sulovsky, Jasna Prpic-Orsic, Kei Sugimoto, Tormod R. Landet   +11 more
doaj   +1 more source

Uniqueness in MHD in divergence form: right nullvectors and well-posedness

, 2002
Magnetohydrodynamics in divergence form describes a hyperbolic system of covariant and constraint-free equations. It comprises a linear combination of an algebraic constraint and Faraday's equations.
Bahcall J. N., Bazer J., Birretta J. A., Choquet-Bruhat Y., Clarke D. A., Dey A., Duncan G. C., Friedrichs K. O., Friedrichs K. O., Hjellming R. M., Kennel C. F., Koide S., Koide S., Komissarov S. S., Le Brun V., Levinson A., Levinson A., Martı́ J. M., Martı́ J. M., Maurice H. P. M. van Putten, Nishikawa K., Pearson T. J., Rees J. M., Ruggeri T., Thomson R. C., van Putten M. H. P. M., van Putten M. H. P. M., van Putten M. H. P. M., van Putten M. H. P. M., van Putten M. H. P. M., van Putten M. H. P. M., van Putten M. H. P. M., van Putten M. H. P. M., Wen L.   +33 more
core   +2 more sources

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti, Finn‐Lennard Janthur, Selina Raumel, Sascha Jan Zimmermann, Sarah Seffer, René Gustus, Sebastian Herbst, Marc C. Wurz, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Florian Nürnberger   +11 more
wiley   +1 more source

Analysis of a Horizontal-Axis Tidal Turbine Performance in the Presence of Regular and Irregular Waves Using Two Control Strategies

Energies, 2019
The flow developed on a tidal site can be characterized by combinations of turbulence, shear flows, and waves. Horizontal-axis tidal turbines are therefore subjected to dynamic loadings that may compromise the working life of the rotor and drive train ...
Stephanie Ordonez-Sanchez, Matthew Allmark, Kate Porter, Robert Ellis, Catherine Lloyd, Ivan Santic, Tim O’Doherty, Cameron Johnstone   +7 more
doaj   +1 more source